This article is a video tour of the architecture you'll work with when using PowerPivot for SharePoint. There are four videos in this series, and you can watch them all on this page.
This series is presented by Lee Graber, Senior Software Developer, Microsoft SQL Server Analysis Services. The series is produced by Heidi Steen, edited by Michele Hart, and shot by Ed Price, Technical Writers at Microsoft.
Great page and videos
Hmmmm, looks OK